Gamma instrument fixing device for preventing crossing of salt pan butt joint well

Abstract

The utility model discloses a gamma instrument fixing device for preventing crossing of a salt pan butt joint well, and belongs to the technical field of salt pan butt joint well monitoring. A gamma instrument fixing device for preventing crossing of a salt pan butt joint well comprises a gamma instrument body, a drill rod and a drill bit, connecting ends are arranged at the two ends of the gamma instrument body, the two ends of the gamma instrument body are in threaded connection with one end of the drill rod and one end of the drill bit through the connecting ends, and two first cavities are formed in the two connecting ends respectively. Limiting assemblies used for preventing the gamma instrument body from rotating are arranged in the first cavities respectively. According to the utility model, when the gamma instrument body is tightened, a drill rod or a drill bit is used for jacking and pressing the seesaw, and the spring telescopic rod is inserted into the limiting hole, so that the rotation of the gamma instrument body is limited, the purpose that the installation is firm and not easy to loosen is achieved, the spring telescopic rod is driven by the shifting plate to stretch and retract, and the limiting of the gamma instrument body is relieved; the purpose of disassembling the gamma instrument body is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of monitoring of salt field connection wells, in particular to a gamma instrument fixing device for preventing cross - layer in salt field connection wells. Background Technique

[0002] The gamma instrument for preventing cross - layer in salt field connection wells is a geological monitoring device specially designed for the salt field mining process, mainly used to detect and evaluate the integrity of the isolation layer (anti - cross - layer) between the salt layer and the upper and lower strata. In salt field mining, the role of the anti - cross - layer is to prevent the undesired mixing of salt brine with formation water or strata, ensuring the safety and efficiency of the mining process.

[0003] Existing gamma instruments are usually installed at the end of drill pipes or casings and are connected by threads with a direction opposite to the rotation direction of the drill pipe. However, due to the easy vibration of the drill bit and drill pipe during the mining process, the gamma instrument is prone to loosen during the mining process, affecting the monitoring of the anti - cross - layer. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem that the gamma instrument in the prior art is prone to loosen and affect the monitoring, and to propose a gamma instrument fixing device for preventing cross - layer in salt field connection wells.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A gamma instrument fixing device for preventing cross - layer in salt field connection wells, including a gamma instrument body, a drill pipe and a drill bit. Both ends of the gamma instrument body are provided with connection ends. Both ends of the gamma instrument body are thread - connected to one end of the drill pipe and the drill bit through the connection ends. Two first cavities are respectively opened inside the two connection ends. Limiting components for preventing the rotation of the gamma instrument body are respectively arranged inside the first cavities. Limiting holes matching with the limiting components are respectively opened at one end of the drill pipe and the drill bit.

[0007] In some embodiments, the limiting component includes a spring telescopic rod for preventing the rotation of the gamma instrument body and a seesaw for driving the movement of the spring telescopic rod. The seesaw is rotationally connected inside the first cavity through a rotating shaft. A connecting block is fixedly connected inside the first cavity. The spring telescopic rod is slidably connected to the surface of the spring telescopic rod. A first spring for resetting is sleeved on the surface of the spring telescopic rod.

[0008] In some embodiments, two second cavities are respectively opened inside the two connection ends. A dial for driving the telescopic movement of the spring telescopic rod is arranged on the surface of the spring telescopic rod. One end of the dial is arranged inside the second cavity.

[0009] In some embodiments, a clamping block for limiting the dial plate is arranged inside the second cavity, and a torsion spring is arranged on the surface of the clamping block.

[0010] In some embodiments, protective plates are respectively arranged on the surfaces of a plurality of the second cavities.

[0011] In some embodiments, sealing rings are respectively arranged at one ends of the drill pipe and the drill bit.

[0012] Compared with the prior art, the present utility model provides a gamma instrument fixing device for preventing salt field docking wells from crossing layers, and has the following beneficial effects.

[0013] 1. In the present utility model, by arranging a connection end, it is convenient to fixedly connect the gamma instrument body to the surfaces of the drill pipe and the drill bit. By arranging a limiting component, when the drill pipe or the drill bit is connected, the rocker is pressed, driving the spring telescopic rod to insert into the limiting hole, thereby limiting the rotation of the gamma instrument body and preventing it from loosening due to vibration.

[0014] 2. In the present utility model, by arranging a dial plate, it is convenient to drive the telescopic end of the spring telescopic rod to move, change the length of the spring telescopic rod, release the limit on the gamma instrument body, and facilitate removing the gamma instrument from the surfaces of the drill pipe and the drill bit.

[0015] Parts not involved in this device are the same as or can be implemented using the prior art. When tightening the gamma instrument body in the present utility model, the drill pipe or the drill bit presses the rocker, causing the spring telescopic rod to insert into the limiting hole, thereby limiting the rotation of the gamma instrument body and achieving the purpose of firm installation and not being easily loosened. By driving the spring telescopic rod to expand and contract with the dial plate, the limit on the gamma instrument body is released, achieving the purpose of disassembling the gamma instrument body.

[0016] Other advantages, objectives, and features of the present utility model will be described to some extent in the subsequent specification; and to some extent, based on the study of the following text, it will be obvious to those skilled in the art; or, it can be taught from the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of the present utility model.

[0018] Figure 2 It is a front view sectional structural schematic diagram of the present utility model.

[0019] Figure 3 For the present utility model Figure 2 The enlarged structural schematic diagram at A in it.

[0020] Figure 4It is a schematic diagram of the cross-sectional structure when viewed from above of the utility model.

[0021] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged structure at point B.

[0022] In the figure:

[0023] 1. Gamma instrument body; 2. Drill rod; 3. Drill bit; 4. Connecting end; 5. First cavity; 6. Second cavity; 7. Limiting assembly; 701. Rocker; 702. Connecting block; 703. Spring telescopic rod; 704. First spring; 8. Limiting hole; 9. Dial plate; 10. Block; 11. Torsion spring; 12. Protective plate; 13. Sealing ring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Reference Figures 1-5 A gamma instrument fixing device for preventing over-layering in a salt field docking well comprises a gamma instrument body 1, a drill pipe 2 and a drill bit 3. Both ends of the gamma instrument body 1 are provided with connecting ends 4. Both ends of the gamma instrument body 1 are threadedly connected to one end of the drill pipe 2 and the drill bit 3 through the connecting ends 4. Two first cavities 5 are respectively provided inside the two connecting ends 4, and the first cavity 5 is L-shaped.

[0026] It can be understood that by providing the connection end 4 , the gamma instrument body 1 is fixedly connected to the surface of the drill rod 2 and the drill bit 3 under the action of the reverse thread.

[0027] Specifically, the first cavity 5 is respectively provided with a limit assembly 7 for preventing the gamma instrument body 1 from rotating, and one end of the drill rod 2 and the drill bit 3 is respectively provided with a limit hole 8 matched with the limit assembly 7. The limit assembly 7 includes a spring telescopic rod 703 for preventing the gamma instrument body 1 from rotating and a seesaw 701 for driving the spring telescopic rod 703 to move. The spring telescopic rod 703 includes a sleeve sliding on the surface of the connecting block 702 and a telescopic end sliding inside the sleeve, and a spring is provided inside the sleeve to make the telescopic end pop out automatically. The seesaw 701 is rotatably connected to the first cavity 5 through a rotating shaft, one end of the seesaw 701 is provided at the connecting end 4 and the inner wall, and the other end of the seesaw 701 is overlapped at one end of the spring telescopic rod 703. The first cavity 5 is fixedly connected with the connecting block 702, the spring telescopic rod 703 is slidably connected to the surface of the spring telescopic rod 703, and the surface of the spring telescopic rod 703 is sleeved with a first spring 704 for resetting.

[0028] It can be understood that when the connecting end 4 is connected to the drill rod 2 or the drill bit 3, the drill rod 2 or the drill bit 3 presses the rocker 701, driving the spring telescopic rod 703 to slide on the surface of the connecting block 702 and insert into the limiting hole 8, thereby limiting the rotation of the gamma instrument body 1 to prevent it from loosening due to vibration. By setting the first spring 704, the spring telescopic rod 703 can be driven to automatically reset.

[0029] Specifically, two second cavities 6 are respectively provided inside the two connecting ends 4, and a shift plate 9 for driving the spring telescopic rod 703 to extend and retract is provided on the surface of the spring telescopic rod 703. The shift plate 9 is penetrated through the telescopic end of the spring telescopic rod 703, and one end of the shift plate 9 is provided inside the second cavity 6.

[0030] It can be understood that when the spring telescopic rod 703 moves, the paddle plate 9 is driven to engage with the surface of the card block 10 to prevent the spring telescopic rod 703 from automatically contracting, resulting in failure of the limit on the gamma instrument body 1. By paddle plate 9, the telescopic end of the spring telescopic rod 703 is driven to move, so that it disengages from the limit hole 8, thereby releasing the limit on the gamma instrument body 1, making it easier to remove the gamma instrument from the surface of the drill rod 2 and the drill bit 3.

[0031] Specifically, a block 10 for limiting the shift plate 9 is provided inside the second cavity 6. The block 10 is rotatably connected to the inside of the second cavity 6 via a rotating shaft. A torsion spring 11 is provided on the surface of the block 10. The torsion spring 11 drives the block 10 to rotate toward the inside of the second cavity 6.

[0032] It is understandable that by providing the torsion spring 11, the block 10 generates elastic force, and when the spring telescopic rod 703 moves toward the limiting hole 8, the shift plate 9 is engaged with the surface of the block 10 to prevent the spring telescopic rod 703 from shortening due to vibration and causing limiting failure.

[0033] Specifically, a plurality of second cavity 6 surfaces are respectively provided with protective plates 12, the protective plates 12 are rotatably connected to the second cavity 6 surface via hinges, the protective plates 12 are fixedly connected to the surface of the gamma instrument body 1 via bolts, and sealing rings 13 are respectively provided at one end of the drill rod 2 and the drill bit 3.

[0034] It can be understood that the protection plate 12 is provided to protect the second cavity 6, thereby preventing mud from entering the second cavity 6 and causing blockage during mining.

[0035] In the present utility model, the gamma instrument body 1 is threadedly connected to one end of the drill pipe 2 through the connection end 4. During the connection process, the drill pipe 2 extends into the connection end 4. When tightening to the last turn, the drill pipe 2 presses against the seesaw 701, causing the other end of the seesaw 701 to push the spring telescopic rod 703 to slide upward on the surface of the connection block 702, changing the initial position of the spring telescopic rod 703. Since the spring telescopic rod 703 is not yet aligned with the limit hole 8, the telescopic end retracts into the sleeve. At this time, the telescopic end of the spring telescopic rod 703 is still in the first cavity 5. When turning another turn, the limit hole 8 corresponds to the spring telescopic rod 703, and the spring inside the spring telescopic rod 703 pushes the telescopic end into the limit hole 8 to limit the rotation of the gamma instrument body 1 and prevent it from loosening due to vibration. At the same time, the spring telescopic rod 703 drives the dial 9 to move upward, and the latch 10 drives the inner rotation through the torsion spring 11 and is clamped on the surface of the dial 9 to prevent the spring telescopic rod 703 from shortening due to vibration and causing the limit to fail, thus completing the installation work of the gamma instrument body 1. Then, the drill bit 3 is installed at the other end of the gamma instrument body 1 through the above steps. When disassembly is required, the cover plate is opened, the latch 10 is toggled to disengage from the dial 9, and then the dial 9 is toggled to drive the telescopic end of the telescopic rod to retract into the sleeve from the limit hole 8, releasing the limit on the gamma instrument body 1 for disassembly. Under the action of the first spring 704, the spring telescopic rod 703 and the seesaw 701 are automatically reset for convenient next use.

[0036] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes should be covered within the protection scope of the present utility model.

[0037] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without conflict, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0038] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A gamma instrument fixing device for preventing cross - layer in a salt - field docking well, comprising a gamma instrument body (1), a drill pipe (2) and a drill bit (3), characterized in that, Both ends of the gamma instrument body (1) are provided with connection ends (4). Both ends of the gamma instrument body (1) are threadedly connected to one end of the drill pipe (2) and the drill bit (3) through the connection ends (4). Two first cavities (5) are respectively formed inside the two connection ends (4). A limiting component (7) for preventing the gamma instrument body (1) from rotating is respectively arranged inside the first cavities (5). Limiting holes (8) that cooperate with the limiting component (7) are respectively formed at one end of the drill pipe (2) and the drill bit (3).

2. The gamma instrument fixing device for preventing cross - layer in the salt pan docking well according to claim 1, wherein, The limiting component (7) includes a spring telescopic rod (703) for preventing the gamma instrument body (1) from rotating and a rocker (701) for driving the spring telescopic rod (703) to move. The rocker (701) is rotatably connected inside the first cavity (5) through a rotating shaft. A connecting block (702) is fixedly connected inside the first cavity (5). The spring telescopic rod (703) slidably passes through the surface of the connecting block (702). A first spring (704) for resetting is sleeved on the surface of the spring telescopic rod (703).

3. The gamma instrument fixing device for preventing cross - layer in the salt pan docking well according to claim 2, characterized in that, Two second cavities (6) are respectively formed inside the two connection ends (4). A dial plate (9) for driving the spring telescopic rod (703) to expand and contract is arranged on the surface of the spring telescopic rod (703). One end of the dial plate (9) is arranged inside the second cavity (6).

4. A gamma instrument fixing device for preventing cross - layer in salt - field docking wells according to claim 3, characterized in that, A clamping block (10) for limiting the dial plate (9) is arranged inside the second cavity (6). A torsion spring (11) is arranged on the surface of the clamping block (10).

5. A gamma instrument fixing device for preventing cross - layer in a salt pan docking well according to claim 3, characterized in that, A protective plate (12) is respectively arranged on the surfaces of the plurality of second cavities (6).

6. The gamma instrument fixing device for preventing cross - layer in the salt pan docking well according to claim 1, characterized in that, Sealing rings (13) are respectively arranged at one end of the drill pipe (2) and the drill bit (3).

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